1/*
2 * arch/sh/drivers/pci/fixups-rts7751r2d.c
3 *
4 * RTS7751R2D PCI fixups
5 *
6 * Copyright (C) 2003  Lineo uSolutions, Inc.
7 * Copyright (C) 2004  Paul Mundt
8 *
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License.  See the file "COPYING" in the main directory of this archive
11 * for more details.
12 */
13#include "pci-sh4.h"
14
15#define PCIMCR_MRSET_OFF	0xBFFFFFFF
16#define PCIMCR_RFSH_OFF		0xFFFFFFFB
17
18int pci_fixup_pcic(void)
19{
20	unsigned long bcr1, mcr;
21
22	bcr1 = inl(SH7751_BCR1);
23	bcr1 |= 0x40080000;	/* Enable Bit 19 BREQEN, set PCIC to slave */
24	pci_write_reg(bcr1, SH4_PCIBCR1);
25
26	/* Enable all interrupts, so we known what to fix */
27	pci_write_reg(0x0000c3ff, SH4_PCIINTM);
28	pci_write_reg(0x0000380f, SH4_PCIAINTM);
29
30	pci_write_reg(0xfb900047, SH7751_PCICONF1);
31	pci_write_reg(0xab000001, SH7751_PCICONF4);
32
33	mcr = inl(SH7751_MCR);
34	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
35	pci_write_reg(mcr, SH4_PCIMCR);
36
37	pci_write_reg(0x0c000000, SH7751_PCICONF5);
38	pci_write_reg(0xd0000000, SH7751_PCICONF6);
39	pci_write_reg(0x0c000000, SH4_PCILAR0);
40	pci_write_reg(0x00000000, SH4_PCILAR1);
41
42	return 0;
43}
44